ateístaateista
Ateístaateista is not a standard term in Portuguese or in major dictionaries. The correct and widely used word is ateísta, referring to a person who does not believe in deities. Ateísmo denotes the related philosophical position, while ateu is another common designation for a nonbeliever. The form ateístaateista appears to be a concatenation of ateísta with itself or a misspelling, and it has no established meaning in authoritative sources. In informal writing, it may result from a typographical error, a playful neologism, or an intentional coinage used for emphasis or humor.
Etymology and usage context: ateísta derives from the prefix a- together with the root related to belief
In broader discourse, atheism intersects with discussions on secularism, science education, religious freedom, and civil rights.